There are so many paths, is this for your children OP? How old are they? What are their interests? Do they have a strong work ethic, are they prepared to work hard, do they prefer outdoors, using their hands, other people, working alone? Are they inventive? Do they prefer to lead or be part of the team that gets things done?
What do you mean by good? Just in terms of salary? Or wanting to get up each day? Would they be happy with repetitive work that pays well or would they go insane and need variety?
AI will change the working environment, there will be ways of producing and using energy in 20 years time we can’t imagine yet.
There just isn’t a defined answer to this question.
People will always need to eat, AI can’t replace that, being a taster for major food brands pays a fortune, but you need the most sensitive tastebuds and a passion. Running a frequented food/drinks venue would be long unsocial hours, but ideal if enjoying people’s company and delight in them enjoying your food and atmosphere. Producing flour, wine, cheese, more lonely perhaps but striving to continuously find new tastes and being dependable in supply.
Logistics for travel and deliveries.
Train driver.
Transport will always be needed.
So really it depends on a person’s strengths, weaknesses, what drives them, makes them feel fulfilled. “Good” shouldn’t just be about money, it should also be about passion, fulfilment, service, who you spend a large part of your working life with and doing.
Police, fire, ambulance, postie, nail beautician, cameraman, wedding organisation, vicar?
Guide your children but they need to lead the way.
There are thousands of well paid jobs/careers, they become well paid when there is a drive and dedication from the person entering that profession.